Tell one distinguishing feature between eukaryotes and prokaryotes.

Explanation

To distinguish between eukaryotes and prokaryotes, we can identify one key feature:

### Step-by-Step Solution:

1. **Definition of Prokaryotes**: Prokaryotes are unicellular organisms that lack a true nucleus. Their genetic material is not enclosed within a membrane, and they have a region called the nucleoid where the DNA is located.

2. **Lack of Membrane-Bound Organelles**: Prokaryotic cells do not possess membrane-bound organelles such as mitochondria, chloroplasts, or the endoplasmic reticulum. They contain ribosomes, but these are of a different type (70S ribosomes).

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